Here are a few notes I've made on keeping the the screen from blanking in linux. I generally am using Ratpoison (and sometimes just the console), so these are notes on how to disable screen blanking in X and console situations, not the higher-level GNOME or KDE screensaver. I've come up with a configuration that works to keep my screen from ever turning off, but I don't have an in-depth understanding of exactly what's being done. Some of this may be redundant.